Figure 3

Muscular origins and insertions of the distal humerus of Mystacina tuberculata. Schematic diagram of the muscular origins and insertions of the distal humerus of Mystacina tuberculata (NMNZ LM 1231, Kaikohe, Northland, NZ). The M. extensor carpi radialis longus (ECRL) is shown lifted from the radius to better view its sesamoid. Blue shading indicates ECRL course in supraepicondylar groove of distal humerus. Scale bar = 4 mm.